Nowadays an emerging class of applications are based oncollaboration over a shared
database among different entities. However, the existing solutions on shared database may …

Despite recent intensive research, existing blockchain systems do not adequately address
all the characteristics of distributed applications. In particular, distributed applications …

In this paper we present BlockchainDB, which leverages blockchains as a storage layer and
introduces a database layer on top that extends blockchains by classical data management …

In this paper, we design and implement the first-ever decentralized replicated relational
database with blockchain properties that we term blockchain relational database. We …

Blockchain has been adopted in many applications to construct trust among multiple
participants, such as supply chain management, digital assets transfer, philanthropy, etc …

Blockchain has come a long way-a system that was initially proposed specifically for
cryptocurrencies is now being adapted and adopted as a general-purpose transactional …

Blockchain databases have attracted widespread attention but suffer from poor scalability
due to underlying non-scalable blockchains. While blockchain sharding is necessary for a …

Blockchain has been praised for providing the technical infrastructure that enables a group
of self-interested entities to share data without relying on intermediaries. Technically …

With the emergence of hybrid blockchain database systems, we aim to provide an in-depth
analysis of the performance and trade-offs among a few representative systems. To achieve …

Despite increasingly emerging applications, a primary concern for blockchain to be fully
practical is the inefficiency of data query. Direct queries on the blockchain take much time by …